In 1667, the Cheatham family visits Whitehall Palace along with the servants. Meriel St. Thomas works as a maid to Lady Judith Cheatham so is at the palace when the King's spymaster William Chiffinch mistakes her for Lady Felice, wife of the Earl of Warborough and a traitor to England; Felice has abetted England's adversary the Dutch.
Once he realizes his mistake, William drafts Merry to pose as Felice so that the English can pass false messages through her to the Dutch. Felicity's spouse Giles Harringdon feels like an idiot as he finds himself still desiring his seditious wife; not understanding she is actually Merry. Finally needing to be alone with her, he abducts his spouse. Merry falls in love with Giles and he reciprocates until he learns the truth; but with London in danger there is no time to explore their feelings.
This is an exhilarating seventeenth century espionage romance that uses real persona and events to anchor the period, but belongs to the lead pair. Merry is a terrific protagonist who perhaps too easily converts from serving to being served. However, it is Giles who is the more fascinating character as he feels like the world's biggest fool for falling in love with his traitorous wife a second time. Fans will enjoy this action-packed historical tale that never slows down from the moment William assumes that Merry is Felice on a tryst until the final confrontation with London at stake.